Dielectric structure, a method of manufacturing thereof and a fire rated radio frequency cable having the dielectric structure

Abstract

An article of manufacture comprising a first section having a first dielectric material and a second section having a second dielectric material and provided on an outer surface of the first section. The second dielectric material of the second section is more flexible than the first dielectric material of the first section, and the second section comprises elements of an organic material located partially on an outer surface of the second section. A coaxial cable using the article of manufacture and a method of manufacturing of the article are also disclosed.

What is claimed is: 
     
       1. An article of manufacture comprising:
 a first section comprising a first dielectric material having a cylindrical shape, the first section comprising a plurality of recesses respectively embedded in an outer surface of the first section, each of the plurality of recesses is exposed and spaced apart from one another in the outer surface of the first section; 
 a second section comprising a second dielectric material and provided on an outer surface of the first section, thereby forming a cylindrical coaxial structure together with the first section; 
 wherein the second dielectric material of the second section is more flexible than the first dielectric material of the first section; and 
 wherein the second section comprises elements of an organic material located in the plurality of recesses, 
 wherein the elements of the organic material are spaced apart from one another in the plurality of recesses, thereby preventing a short circuit in the event the organic material is charred. 
 
     
     
       2. The article of manufacture of  claim 1 , wherein the first dielectric material of the first section is brittle and the second dielectric material of the second section is flexible. 
     
     
       3. The article of manufacture of  claim 1 , wherein the first dielectric material is one of ceramic or silica. 
     
     
       4. The article of manufacture of  claim 1 , wherein the second dielectric material is silica. 
     
     
       5. A radio frequency coaxial cable, comprising:
 a first conductor; 
 a second conductor provided around the first conductor having a separation therewith; 
 an insulating material provided within the separation between the first conductor and the second conductor; the insulating material including: 
 a first section comprising a first dielectric material having a cylindrical shape, the first section comprising a plurality of recesses respectively embedded in an outer surface of the first section, each of the plurality of recesses is exposed and spaced apart from one another in the outer surface of the first section; 
 a second section comprising a second dielectric material and provided on an outer surface of the first section, thereby forming a cylindrical coaxial structure together with the first section; 
 wherein the second dielectric material of the second section is more flexible than the first dielectric material of the first section; and 
 wherein the second section comprises elements of an organic material located in the plurality of recesses, 
 wherein the elements of the organic material are spaced apart from one another in the plurality of recesses, thereby preventing a short circuit between the first and second conductors in the event the organic material is charred. 
 
     
     
       6. The radio frequency coaxial cable of  claim 5 , wherein the insulating material is disposed helically around the first conductor. 
     
     
       7. The radio frequency coaxial cable of  claim 5  wherein the first dielectric material is one of ceramic or silica. 
     
     
       8. The radio frequency coaxial cable of  claim 5  wherein the second dielectric material is silica. 
     
     
       9. A radio frequency coaxial cable, comprising:
 a first conductor; 
 a second conductor provided around the first conductor having a separation therewith; 
 an insulating material provided within the separation between the first conductor and the second conductor; the insulating material including: 
 a first section comprising a first dielectric material having a cylindrical shape, the first section comprising a plurality of recesses respectively embedded in an outer surface of the first section, each of the plurality of recesses is exposed and spaced apart from one another in the outer surface of the first section; 
 a second section comprising a second dielectric material and provided on an outer surface of the first section, thereby forming a cylindrical coaxial structure together with the first section; 
 wherein the second dielectric material of the second section is more flexible than the first dielectric material of the first section; 
 wherein the second section comprises elements of an organic material located in the plurality of recesses; and 
 wherein the first dielectric material of the first section is brittle and the second dielectric material of the second section is flexible, 
 wherein the elements of the organic material are spaced apart from one another in the plurality of recesses, thereby preventing a short circuit between the first and second conductors in the event the organic material is charred. 
 
     
     
       10. An article of manufacture comprising:
 a first section comprising a first dielectric material having a cylindrical shape, the first section comprising a plurality of recesses respectively embedded in an outer surface of the first section, each of the plurality of recesses is exposed and spaced apart from one another in the outer surface of the first section; 
 a second section comprising a second dielectric material and provided on an outer surface of the first section, thereby forming a cylindrical coaxial structure together with the first section; 
 wherein the second dielectric material of the second section is more flexible than the first dielectric material of the first section; and 
 wherein the second section comprises elements of an organic material located in the plurality of recesses; and 
 wherein the elements of the organic material are spaced-apart burnt remainder elements of an organic material in the plurality of recesses embedded in the outer surface of the second section. 
 
     
     
       11. A radio frequency coaxial cable, comprising:
 a first conductor; 
 a second conductor provided around the first conductor having a separation therewith; 
 an insulating material provided within the separation between the first conductor and the second conductor; the insulating material including: 
 a first section comprising a first dielectric material having a cylindrical shape, the first section comprising a plurality of recesses respectively embedded in an outer surface of the first section, each of the plurality of recesses is exposed and spaced apart from one another in the outer surface of the first section; 
 a second section comprising a second dielectric material and provided on an outer surface of the first section, thereby forming a cylindrical coaxial structure together with the first section; 
 wherein the second dielectric material of the second section is more flexible than the first dielectric material of the first section; 
 wherein the second section comprises elements of an organic material located in the plurality of recesses; and 
 wherein the elements of the organic material are burnt remainder elements of an organic material in the plurality of recesses embedded in the outer surface of the second section, 
 wherein the elements of the organic material are spaced apart from one another in the plurality of recesses, thereby preventing a short circuit between the first and second conductors in the event the organic material is charred. 
 
     
     
       12. A radio frequency coaxial cable, comprising:
 a first conductor; 
 a second conductor provided around the first conductor having a separation therewith; 
 an insulating material provided within the separation between the first conductor and the second conductor; the insulating material including: 
 a first section comprising a first dielectric material having a cylindrical shape, the first section comprising a plurality of recesses respectively embedded in an outer surface of the first section, each of the plurality of recesses is exposed and spaced apart from one another in the outer surface of the first section; 
 a second section comprising a second dielectric material such that the entire inner surface of the second section is provided on the entire outer surface of the first section, thereby forming a cylindrical coaxial structure together with the first section; 
 wherein the second dielectric material of the second section is more flexible than the first dielectric material of the first section; and 
 wherein the second section comprises elements of an organic material located in the plurality of recesses, 
 wherein the elements of the organic material are spaced apart from one another in the plurality of recesses, thereby preventing a short circuit between the first and second conductors in the event the organic material is charred.